Portable drill



April 14, 1925. 1,533,381

E. BURTON PORTABLE DRILL Filed June 8, 1923 2 Sheets-Sheet 1 E. L. BURTCN April 14, 1925.

PORTABLE DRILL Filed June 8, 1923 2 Sheets-Sheet 2 Patented Apr. 14, 1925.

1,533,381 PATENT OFFICE.

UNITED STATES EDWARD L. BURTON, 0F SANDWICH, ILLINOIS.

PORTABLE DRILL.

Application filed June 8,

of Sandwich, county of- DeKalb, and State of Illinois, have invented certain new and useful Improvements in Portable Drills, of which the following is a specification;

This invention relates to portable drills and more particularly to devices of this character to be used for supporting a power operated drill, so as to operate upon the under side of the center sills of railway cars, or in similar situations where 1t 1s inconvenient to drill upwardly without asupport.

Other objects will appeal. hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to theaccompanying drawings forming a partoi this specification, and in which,

1 is a side view partially in section of the: invention as applied to a channel bar of the-type ordinarily used as center sills/ of railway "cars;

Fig. .2 is a sectional View of the invention upon the line 22 of Fig. 1.;

' Fig; 3 is a fragmentary view of the invention prart1allly' in section, upon the hue 3-3 Figs-is a view partially in section upon the line H of Fig. l;

Fig. 5: is a partial sectional view of the invention upon the line 55 Fig. 1', and Fig; 6 is a partialsectional view of the invention upon the line 6-6 of Fig. 1. p

The invent'on is primaril intended for use in boring holes in the lower flange of the channel nrembers which ordinarily form the" center'- sillsof railway cars, in order to apply connecting plates for strengthening purposes or otherwise, but it will be appreciated that the device is applicable in any and all situations wherein it desired to suepend dirillf in order to operatempon the under side of the work, the device including means fol-bodily holding the drill to its work, with the added ad-vantage that the drill is guided in its movements. 1

Referringto the drawings, 10' represents a cross sectional view of a channel bar, wl'iich is: of the type ordinarily used as center sills oi railway cars, although it is obvious that it' lnight be desirable to operate on similar" work inniany other situations. The

1923. Serial No. 644,112.

device includes a frame preferably made of longitudlnally disposed angle bars 11, a transverse bar 12, and a base 13. The ends of the bars 11 have hook portlons l-ladapted to be hooked over the channel bar 10, and

mounted in each of the hook portions 1% is a shaft 15 upon which is mounted a roller 16, there preferably being roller bearings 17 disposed between the inner periphel v of the roller 16 and the shaft 15. The rollers 16' are for the purpose of reducing the friction incident to moving the frame along the channel bar 10. The bars 11 of the frame are preferably oli'set as shown at 18 so as to dispose the base 13 in a: position under the member 10. The base 13 of the frame is preferably segmental in shape as shown in Figs. 5 and 6, and the edge of such base is preferably provided with notches 19.

Pivotally mounted upon the base 13 as shown at 20 is a supportingmember 21, said support including an uprigl'it 22 preferably provided with a plurality of adjusting apertures 23-, and pivotally attached to the upper end of the upright member 22 is a brace 24:, the upper end of which is pivotally and slid'ably engaged in the cross bar 12 as clearly shown in Figs 1 and 1, thus mounting the supporting member for swinging movement, which swinging movement may be a1- rested by means of a latch 25 adapted to normally engage the notches 19 under the urge of a spring 26, such latch being manually removable to permit swinging of the support 21.

Pivotally mounted upon the upright member 22, by means of a removable pin 27, is a lever 28 the outer end of which is provided with a handle 29 for operating the same The inner end of the lever 28 is preferably provided with a slot 80, in which is pivotally mounted, by means of a pin 31, a stud 32, which is adapted to be disposed in an axial recess 33, ordiuari1y wescnt in a common form of electric drill as shown at mounting.- The length of stroke of the drill may be varied by adjustingthe pin 27 with various ofthe apertures 23 as will be readily understood. It is here noted that the pivotal mounting 20 is directly beneath the axis of the drill 34;, and this is for the purpose of turning the support 21 so that the lever is turned partially against the side of the frame in'order to avoid obstructions against which the lever might strike, this feature being particularly designed .to permit the drilling of holes in the center sills of railway cars at points at the inner sides of the wheels of the trucks of the cars, it being the practice to remove the center sills and .trucks of the cars from the body, when the center sills arev drilled for the purpose of attaching strengthening plates thereto.

While I have illustrated and described the preferred .form of construction for carrying my invention into effect, this is capable of'variation and modification without departing from the spirit of the invention. 1, therefore do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

,Having described my invention what I claim as new and desire to secure by Letters Patent, is:

1. A device of the character described comprising a frame including a base member and upright members having hook portions for suspending the frame; a power driven machine provided with a recess in its bottom; a supporting member pivotally mounted on said base member on a pin in line with the axis of said machine; an upright on said supporting member; a lever 'adjustably mounted on said upright and having a pin pivoted to its forward end and engaging in said recess, said lever and upright being swingable laterally towards said frame; and means slidably mounted on said frame for guiding said machine in its vertical movement.

2. A device of the character described including a supporting frame; a power driven machine adapted for connection with said frame; asupporting member pivotally mounted on a pin in line with the axis of said machine; means. for mov g said machine to different working positions; and means for guiding said machine during such movements, substantially as described.

8. A device of the, character described comprising a supporting frame; a power.

driven machine adapted for connection with said frame, said power driven machine being provided with a recess and a bitreceiving collar in alinement therewith; and means for moving said machine and collar axially to different working positions, said means including a lever mounted on said frame, there'being a pin pivotally mounted on said lever and arranged to be loosely disposed in said recess to support said machine, substantially as described.

4:. A device of the character described comprising a supporting frame; a power driven machine adapted for connection with said frame, said power driven machine being provided with a recess and a bit receiving collar; means for moving said machine and collar axial-1y to different working positions, said means including, a lever mounted on said frame, there being a pin .pivotally mounted on said lever and arranged to be loosely disposed in said recess; and a member slidably mounted on said frame and arranged for attachment to said collar to guide thesame axially during such movement, substantially as described.

5. A device of the character described comprising a frame including hook members adapted to hook over a channel bar to support and retain said frame in working position thereon; a motor with bit receiving means suitably mounted on said frame; a

supporting member mounted on said frame means for guiding said machine axially on.

said frame, substantially as described.

7. A device of the character described comprisin a frame having a base member and upright members with hook portions for suspending the same, there being anti-friction rollers mounted in said hook portions; a power driven machine arranged for connection with said frame, said machine having a recess; a supporting member mounted on said base member on a pin in line with the axis of said machine; a lever mounted on said supporting member, said lever having a pin pivotally connected thereto and being adapted to be disposed in the recess in said machine; and a bar slidably mounted on said frame and adapted for attachment with said machine to guide the same in its movements, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

EDWARD L. BURTON.

WVitnesses:

FREDA C. APPLE'roN, MARGARET AUER. 

